scholarly journals Anterior Skull Base Analysis from Coronal and Reconstructed Computed Tomography: Radio-Anatomical Study

2021 ◽  
Vol 23 (4) ◽  
pp. 302-307
Author(s):  
Bhima Neupane ◽  
Phanindra Prasad Poudel ◽  
Prakash Sharma ◽  
Krishna Koirala ◽  
Brihaspati Sigdel
Keyword(s):  
Ct Scan ◽  
Skull Base ◽  
Computerized Tomography ◽  
Skull Base Surgery ◽  
Anatomical Study ◽  
Anterior Skull Base ◽  
Cribriform Plate ◽  
Bony Landmarks ◽  
Nasal Floor ◽  
Base Analysis

Endoscopic sinus and skull base Surgery has gained significant improvement widely all over the world. A computerized tomography (CT) scan provides a detailed anatomy of the skull base especially the bone framework. This study aims to analyze the fixed anatomical bony landmarks of the anterior skull base through coronal and reconstructed CT in the context of the Nepalese population and guide the surgeon to perform endoscopic sinus and skull base surgery safely. This Prospective study includes 70 Computerized Tomography scans of Paranasal sinuses. The different measurement from nasal floor to skull base was taken in coronal and reformatted sagittal CT scan. Mean, standard deviation, minimum and maximum values were analyzed using descriptive statistics. Student T-test was applied to compare between right and left side. This study includes 75 patients between 18 to 77 years. The measurement from nasal floor to the cribriform plate and ethmoidal roof in right and left side were, mean± SD (47± 4.1, 45.3±4.3, 47.9±5.1, and 49±8.5 mm) respectively. Mean Take off angle at the cribriform plate was 43.9 ±10.9°on right side and 43 ± 9.4° on the left side. The distance from the nasal spine to the skull base (mean ± SD) at nasofrontal recess, bulla ethmoidalis, and the junction of sphenoethmoid levels at right sides were 51.5 ± 4.7, 52.9 ± 4.1, and 61.2 ±4.7 little higher at left side. This study provides a detailed analysis of the anterior skull base in coronal and sagittal CT scans which helps to reduces complications.

Complications of Endoscopic Pituitary and Anterior Skull Base Surgery: The Learning Curve

Skull Base ◽  
2009 ◽  
Vol 19 (03) ◽  
Author(s):  
Ameet Singh ◽  
Gurston Nyquist ◽  
Vijay Anand ◽  
Theodore Schwartz
Keyword(s):  
Learning Curve ◽  
Skull Base ◽  
Skull Base Surgery ◽  
Anterior Skull Base

scholarly journals Preservation of nasal turbinates in endoscopic, anterior skull base surgery—yes, we can!

2021 ◽  
Author(s):  
Axel Wolf ◽  
Alexandros Andrianakis ◽  
Peter Valentin Tomazic ◽  
Michael Mokry ◽  
Georg Clarici ◽  
...  
Keyword(s):  
Skull Base ◽  
Skull Base Surgery ◽  
Tumor Resection ◽  
Tumor Location ◽  
Anterior Skull Base ◽  
Tumor Diameter ◽  
Tumor Type ◽  
Preoperative Information ◽  
Medical University ◽  
Significant Factors

Abstract Objective To evaluate the frequency, type and indications of nasal turbinate (NT) resection during endoscopic, anterior skull base surgery and to analyze factors that may have an impact on the need of NT removal. Methods In this retrospective cohort study, 306 subjects (150 males and 156 females, mean age 55.4 ± 15.3 years) who underwent multidisciplinary, transnasal, endoscopic tumor surgery of the anterior skull base using 4-handed techniques between 2011 and 2019 at the Department of Otorhinolaryngology, Medical University of Graz, were included. Results In the majority of interventions (n = 281/306; 91.8%), all NT were preserved. Significant factors influencing the need of NT resections turned out to be type of endoscopic approach (p < 0.001; V = 0.304), sagittal (p = 0.003; d = 0.481) and transversal (p = 0.017; d = 0.533) tumor diameter, tumor type (p < 0.001; V = 0.355) and tumor location (p < 0.001; V = 0.324). Conclusions NT can be preserved in the majority of patients undergoing tumor resection in anterior, transnasal, skullbase surgery and routine resection of NT should be avoided. Variables that have an impact on the need of NT resections are types of endoscopic approaches, sagittal and transversal tumor extension and tumor type. These factors should be considered in planning of surgery and preoperative information of patients.

scholarly journals Anterior Skull Base Surgery for Secondary Malignancies in Retinoblastoma Survivors: Report of Two Cases

Skull Base ◽  
1997 ◽  
Vol 7 (01) ◽  
pp. 39-41 ◽  
Author(s):  
Keiichi Ichimura ◽  
Ken-ichi Nibu ◽  
Toshiyoshi Tanaka ◽  
Hideki Takekoshi ◽  
Tomio Sasaki ◽  
...  
Keyword(s):  
Skull Base ◽  
Skull Base Surgery ◽  
Anterior Skull Base ◽  
Secondary Malignancies

Anterior skull base surgery

2005 ◽  
Vol 38 (1) ◽  
pp. 107-131 ◽  
Author(s):  
Michael J. Kaplan ◽  
Nancy J. Fischbein ◽  
Griffith R. Harsh
Keyword(s):  
Skull Base ◽  
Skull Base Surgery ◽  
Anterior Skull Base

Renal Function and Volume Status in Patients with Morbid Obesity Undergoing Anterior Skull Base Surgery

2021 ◽  
Author(s):  
Aakash D. Shah ◽  
Aksha Parray ◽  
Chris B. Choi ◽  
Christina H. Fang ◽  
Jean A. Eloy
Keyword(s):  
Morbid Obesity ◽  
Renal Function ◽  
Skull Base ◽  
Skull Base Surgery ◽  
Anterior Skull Base ◽  
Volume Status

Anatomical study of occipital triangles: the ‘inferior’ suboccipital triangle, a useful vertebral artery landmark for safe postero-lateral skull base surgery

2017 ◽  
Vol 159 (10) ◽  
pp. 1887-1891 ◽  
Author(s):  
Giuseppe La Rocca ◽  
Roberto Altieri ◽  
Luca Ricciardi ◽  
Alessandro Olivi ◽  
Giuseppe Maria Della Pepa
Keyword(s):  
Vertebral Artery ◽  
Skull Base ◽  
Skull Base Surgery ◽  
Anatomical Study ◽  
Lateral Skull Base

Combined endoscopy-assisted cranionasal approach for resection of infantile myofibromatosis of the ethmoid and anterior skull base

2008 ◽  
Vol 2 (1) ◽  
pp. 58-62 ◽  
Author(s):  
Ercole Galassi ◽  
Ernesto Pasquini ◽  
Giorgio Frank ◽  
Gianluca Marucci
Keyword(s):  
Skull Base ◽  
Skull Base Surgery ◽  
Radical Resection ◽  
Permanent Tooth ◽  
Anterior Skull Base ◽  
Facial Growth ◽  
Endoscopic Endonasal ◽  
Skull Base Reconstruction ◽  
Endoscopic Techniques ◽  
Tooth Roots

The advent and widespread development of endonasal endoscopic techniques have recently expanded the frontiers of skull base surgery. The reduced invasiveness, wider and adjustable visualization of the operative field, and lack of postoperative cosmetic defects are well-known advantages of the endonasal endoscopic approaches compared with traditional surgical exposures both in adults and in children. The need to avoid disruption of facial growth centers and permanent tooth roots represents a further special consideration in favor of these endoscopic techniques in children. The authors report on a case of solitary myofibroma involving the ethmoid, mesial orbits, and anterior skull base with intracranial intradural expansion in a 17-month-old girl. The occurrence of such proliferative disease along the skull base is exceedingly rare. The tumor was successfully excised via an endoscopy-assisted cranionasal approach in which a transcranial microsurgical exposure was combined with endonasal endoscopic access to ensure a radical resection and optimize skull base reconstruction. To the authors' knowledge, the patient in this case is the youngest reported patient in the literature who has undergone treatment with this surgical strategy. The outcome in this patient underscores the feasibility and safety of endoscopic endonasal surgery even in toddlers and early childhood.

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